Grate-furnace.



H. MURPHY. GR'A'IE FURNACE. APPLICATION rum) AUG. 4, 1909.

Patented Mar. 1, 1910. 5 2 Hanna's-slum 1,.

- H. MURPHY.

GBATE FURNAGE. V APPLICATION Ifl-ED AUG. 4, 1909.

951,02-Q Patented Mar.1,1910.

2 SHEETS-SHEET 2.

HAMILTON MURPHY, 0F JERUSALEM, OHIO.

GBATE-FUBNACE.

To all whom it may concern:

Be it known that I, I'LUEILTON MURPHY, a citizen of the United States,residing at Jerusalem, in the county of Monroe and State of Ohio, haveinvented certain new and useful Improvements in Grate-Furnaces, of whichthe following is a specification.

This invention relates to open heaters or grates for fire places and hasfor its object to provide a strong, durable and thoroughly etlicientdevice of this character, the con struction of which is such that amaximum amount of heat is obtained with a minimum consumption of fuel.

ll. further object is to provide a grate, in which the usual fire brickor lining is dis pensed with, provision being made for the passage ofair between the fire box and the adjacent walls of the chimney flue,thus to assist in preventing the metal constituting the fire box fromburning out when subjected to the intense heat of the incandescent bedof fuel.

A. further object is to provide means for deflecting the heat laterallyinto a room or other inclosure, and means for adjusting the deflectingmeans so as to control the passage of the products of combustion throughthe chimney.

A further object is to provide an open heater including a supportingstand having a fire box detachably secured thereto and provided with aremovable grate, suitable attaching members or hooks being carried bythe supportin stand for detachably securing the heater within the fireplace.

It still further object of the invention is generally to improve thisclass of devices so as to increase their utility, durability andefliciency.

Further objects and advantages will ap' pear in the followingdescription, it being understood that various changes in form,proportions and minor details of construe tion may be resorted to withinthe scope of the appended claims.

For a full understanding of the-invention and the merits thereof andalso to acquire a knowledge of the details of construction and the meansfor effecting the result, reference is to be had to the followingdescription and accompanying drawings, in which:

' Figure 1 is a front elevation of an open heater constructed inaccordance with my invention; Fig. 2 is a vertical sectional View takenon the line 22 of Fig. 1, the deflector l Specification of LettersPatent.

Application filed August 4., 1909.

Patented Mar. 11, 191W.

Serial No. 511,235.

plate being shown in dotted lines in a position to direct the heatlaterally into a room; Fig. 8 is a perspective view of the supportingstand and fire box, the fire box, grate and tubular extension beingshown detached from. the stand in order to more clearly illustrate theconstruction of the parts; Fig. 4: is a detail perspective view of theupper portion of the deflector plate showing the manner of attaching thedrag bar thereto.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The open heater forming the subject matter of the present inventioncomprises a supporting stand or base including spaced transverse bars 5connected at their rear ends by a longitudinal bar 6 and provided withdepending legs 7 adapted to rest on the base of the fire place,indicated at 8.

Mounted on the supporting stand or base is a fire box 9, the latterbeing preferably formed of metal and having its side walls provided withdepending lugs 10 adapted to enter correspondingly shaped recesses 11formed in the side bars 5 of the supporting stand or base, as shown.

The upper portion of the fire box 9 is provided with a laterallyextending flange 12 which engages a corresponding flange 13 formed on acasing member or extension 14-, there being registering perforationsformed in the flanges 12 and 13 for the reception of belts or similarfastening devices 15 by means of which the casing or extension 14 may bedetachably secured to the fire box.

Surrounding the interior walls of the fire box 9 at the lower portionthereof, and preferably formed integral with the fire box, is a marginalrib or flange 16 which forms a support for the detachable grate,indicated at 17. The grate 17 comprises a front bar 18 having aplurality of spaced grate bars 19 secured to or formed integraltherewith, with their rear ends resting on the adjacent supporting ribor flange 16, the curved grate bars 19 being reinforced and strengthenedby the provision of an intermediate connecting bar 20 resting on theflange 16 at the side walls of the fire box 9.

The forward ends of the grate bars 19 are curved upwardly, while theterminal grate bars are spaced from the opposite ends of the connectingbar 18 to form terminal portions 21 adapted to rest on suitablesupporting lugs 22 secured to or formed in tegral with the interiorfaces of the side Walls 9.

Thus it will be seen that the grate 17 may be readily placed in positionwithin the fire box 9 or removed therefrom when it is desired to effectany necessary repairs to the grate.

As a means for preventing accidental displacement of the fire box 9 withrespect to the supporting stand, the transverse and longitudinal bars 5and 6 of the latter are formed with a plurality of spaced verticallydisposed lugs 23 adapted to bear against the exterior. walls of the firebox, as shown, the front of the supporting stand, fire box and extensionbeing open so as to permit ready access to the incandescent bed of fuelon the grate.

Attention is here called to the fact that the side walls of the fire box9 and extension 14 are spaced from the interior walls of the I chimneyflue 24 so as to permit the free cir culation of air between the firebox and chimney flue, thus to prevent the intense heat of theincandescent bed of fuel on the grate from burning out the metalconstituting the fire box, such a construction rendering the employmentof the usual fire brick or lining for the grate unnecessary.

Pivotally mounted for tilting movement in the casing or extension 1% ofthe fire box, is a plate or deflector 25 having its lower transverseedge provided with spaced slots 26 which receive laterally extendingpins 27 carried by the rear wall 28 of the fire box and which form thepivotal axis of the deflector plate 25, as shown, said pins beingprovided with enlarged heads so as to prevent accidental displacement ofthe plate 25 when the latter is moved to different positions ofadjustment.

As a means for securing the plate 25 in different positions ofadjustment, there is provided a friction drag comprising a rod 29 havingone end thereof provided with oppositely disposed recesses defining areduced neck 30 adapted to enter a correspondingly shaped slot 31 formedin the upper transverse edge of the plate 25.

The rear end of the rod 29 is provided with a terminal weight 32, whichlatter is slidably mounted in a trough 33, embedded in or otherwisesecured to the adjacent wall of the chimney.

The trough 33 is formed by spaced guide flanges 34 extending verticallyfrom a plate 35, the latter being fastened in any suitable manner to thewalls of the chimney, as before stated.

Thus it will be seen that when the plate 25 is in the dotted lineposition shown in Fig. 2 of the drawings, a large portion of the heatfrom the bed of fuel in the grate will be deflected laterally into theroom or other inclosure, and when the plate is in the full line positionshown in Fig. 2 the products of combustion may pass up the chimney inorder to create a draft through the bed of fuel when necessary, thefrictional engagement of the weight 32 on the trough 33 serving to holdthe plate 25 in adjusted position.

An inclined lug 36 is preferably secured to the interior walls of theextension 1 1; on each side thereof for the purpose of limiting theforward tilting movement of the defiector 25.

In order to detachably secure the heater within the fire place, thesupporting stand thereof is preferably provided with spaced eyes 37adapted to receive the angular terminals 38 of suitable anchoringmembers or hooks 39, the opposite ends of the hooks being embedded in orotherwise secured to the adjacent wall of the chimney, as best shown inFig. 2 of the drawings.

The fire place is preferably surrounded by a metallic face-plate orframe 41, which latter forms a closure for the air passages 40, therebeing transverse recesses 12 formed in the casing 40 and adapted toreceive the flanges 12 and 13 of the tire box and extension 14:respectively. Thus it will be seen that by releasing the anchoringmen'ibcrs or hooks 39 and imparting a slight forward movement to thefire box, the latter together with the supporting stand and extension14, may be readily removed from the fire place and positioned in anotherfire place when desired, while by disengaging the grate 17 from thesupporting lugs and flange 16, the latter may be removed from the firebox in order to effect any necessary repairs thereto.

Having thus described the invention, what is claimed as new is:

1. A device of the class described including a supporting stand, a tirebox mounted on the stand, a casing resting on the tirebox, a removablegrate disposed within said fire box, a horizontally disposed trough, adeflector plate pivotally mounted for tilting movement within thecasing, and a rod having one end thereof operatively connected with theupper end of the deflector plate and its other end extended through theadjacent wall of the casing and provided with a weight slidably mountedin said trough.

2. Adevice of the class described including a supporting stand, havinga. plurality of spaced lugs extending vertically therefrom, a fire boxresting on the supporting stand and bearing against said lugs, a casingdetachably secured to the fire box, a grate disposed within the firebox, pins extending laterally from one wall of the fire box, a deflectorplate pivotally mounted for lateral movement within the casing andhaving its lower edge provided with spaced recesses to accommodate thepins, a horizontally disposed trough, and a rod having one end thereofoperatively connected with the upper end of the deflector plate and itsother end provided with a weight slidably mounted in said trough.

3. A device of the class described comprising a supporting stand havingspaced lugs extending vertically therefrom and provided with oppositelydisposed sockets, a tire box resting on the stand and provided withdepending lugs adapted to enter the sockets in the stand, a casingcarried by the fire box, a grate disposed within the fire box, adeliector plate pivotally mounted for tilting movement within thecasing, a friction drag operatively connected with the upper end of theplate for supporting the plate in different positions of adjustment, andmeans for limiting the forward tilting movement of said deflector plate.

4:. A device of the class described includ ing a supporting stand havingoppositely disposed sockets formed therein, a fire box resting on thesupporting stand and having its lower edge provided with depending lugsentering said sockets and its upper edge provided with a laterallyextending flange, a casing having a corresponding flange adapted toengage the flange on the fire box, lugs secured to the end walls of thefire box, a grate disposed within the fire box and resting on said lugs,pins extending laterally from the fire box at the rear of the grate, adeflector plate pivotally mounted for lateral movement on said pins, andafriction drag operatively connected with the upper end of the deflectorplate for securing the latter in different positions of adjustment.

5. The combination with a fire place, of a supporting stand disposedwithin the fire place, a fire box resting on the stand and spaced fromthe interior walls of the fire place to produce an air passage, a casingde tachably secured to the fire box and also spaced from the interiorwalls of the tire place, a grate seated within the fire box a deflectorplate having its lower end pivotally mounted in the fire box, a trough,and a rod having one end thereof operatively connected with the upperend of the deflector plate and its other end provided with a weightadapted to frictionally engage the walls of the trough.

6. ihe combination with a fire place, of a supporting stand disposedwithin the fire place and provided with spaced eyes, a fire box restingon the stand and spaced from the interior walls of the fire place toform an intermediate air passage, a casing detachably secured to thefire box, a grate disposed withln the fire box, a deflector platepivotally mounted for lateral movement in the casing above said grate, ahorizontally disposed trough, a rod operatively connected with thedeflector plate and provided with a weight slidably mounted in thetrough and constituting a friction drag, and anchoring devices engagingthe eyes on the supporting stand and having portions thereof embedded inthe walls of the fire place.

7. The combination with a fire place having a face plate provided withtransversely alined recesses, of a supporting stand dis posed within andresting on the base of the fire place, a fire box supported by thestand, a casing resting on the firebox, a removable grate disposedwithin the fire box, spaced pins extending inwardly from the rear wallof the fire box, a deflector plate having its lower edge provided withspaced openings adapted to receive the pins and its upper end providedwith an opening, a trough, and a rod having one end thereof providedwith oppositely disposed recesses defining a .reduced neck adapted toenter the opening in the upper end of the deflector plate, and its otherend provided with a weight slidably mounted in the trough, said fire boxand ms ing being provided with laterally extending flanges adapted toenter the recesses in the face plate of the fire place.

In testimony whereof I afiix my signature in presence of two witnesses.

HAMILTON MURPHY. [n 3.

L. W. J ones.

